Nut-lock.



"uit sans tFilEW-ll JOHN J'. SHULTS, OF PASKENT., CALIFORNIA.

NUT-LO CK.

Specication of Letters Patent.

Patentedune 3a, i913.

Application filed January 5', 1911. Serial No. 600,943.

useful Improvei'nents in Nut-Locks; and 1 do declare the following to be a full, clear, and enact description ot the same, such as will enable others skilled in the ar-t to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this application.

This invention relates to improvements in nut and bolt mechanisms, the particular object of the invention being to produce a nut lock whereby when a'nut is once inserted in position on its bolt it will not become loosened or unsecured from the bolt until such time as it is desired, thus preventing accidents such as rail spreading and other serious disasters which occur by reason ot nuts becoming` loosened from their proper position upon the bolt.

A :further object of the invention is to produce simple and inexpensive device, and yet one which will be exceedingly ctective for the purposes for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal ot the following specification and claim.

ln the -drawings similar characters of reterence indicate corrcspomling parts in the several views. 4

' Figure 1 is a side elevation ot my complete mechanism showingthe nut lock in position. Fig. 2 is a sectional view"taken on a line al1-fe of Fig. l. Fig. 3 is an end view of an auxiliary locking nut- Fig. 4 is a side elevation 0i the same. Fig. 5 is a scctional view taken on a line Y-Y of Fig. 4. Fig. 6 is a fragmentary view. showing the manner in which the threads of the looking nut engage the threads of the bolt.

Referring now more particularly to the characters of reerence on the drawings, l

`designates the parts to be bolted together,

and 2 the usual bolt inserted therein, and 3 the usual nut of any type desired.

ln' using my device, I provide an anni f iary nut Il having a threaded projecting shank 5 which member 5 has aninterior threaded oriiice conforming' with the thread ed portion of the nut 4. Said member 5 is provided with a plurality of longitudinal cuts or incisions 6 cut inwardly from its ner` end, which incisions 6 permit the eXte-,

rior and the interior longitudinal sides of saidymember 5 to be flared outwardly as shown in Figs. 4 and 5,

In practice the n ut 4 and shank 5 is first screwed upon the bolt and then the nut is screwed upon the shank 5 compressingr it inwardly to its straight position with respect to the member 4, thus bringing the sides of the incision together and causing the spring or friction effect of this operation to hold the nut 3 tightly in Whatever position it is' left in to prevent it from backing down or becoming loosened until it is so desired.

From this description it will readily appear that I have produced such a nut lock as substantially -fulfills the objects of the invention as set forth herein.

livhile this specification sets forth in de tail the present and preferred construction of the device, still in practice such deviations 'from such detail may be resorted t0 as do not form a departure from the spirit of the invention.

Having thus described my nvention what I claim as newga'n'd usei'ful` and desire to se cure by Letters'iatent is z t A nut .lock comprising a member to be bolted, such member being provided with a recess in its side, a bolt projecting through said member and said recess, an auxiliary nut mounted on said bolt and project-ing into the said recess, a threaded shank on said auxiliary nut, said shank having a plurality1 ot longitudinal incisions cut in its inner end permitting said shank to he flared outwardly7 and a nut mounted on said shank and abutting against the part to be bolted, as described.

In testimony whereof I aiiix my signature in presence of twowitncsses.

JOHN J. SHULTS.

Witnesses:

L. W. VVARMOTH, l?. A. Oans.l 

